Terms of Trade and Growth of Resource Economies: A Tale of Two Countries

Transcription

1 Terms of Trade and Growth of Resource Economies: A Tale of Two Countries Augustin K. FOSU* *Deputy Director, UN University-WIDER. For presentation at the IMF Institute High Level Seminar, Natural Resources, Finance, and Development: Confronting Old and New Challenges, Algiers, Algeria, 4-5 November 2010

2 Outline Introduction Theoretical Discussion The Empirical i Model & Estimation Empirical Results Discussion of Results Some Lessons & Concluding Observations 2

3 Introduction The Big Push view (e.g., Murphy et al, JPE,1989; Sachs &Warner, JDE,1999). The Resource Curse Hyp (RCH) (van der Ploeg, JEL, 2010) Incongruence: The Resource Curse vs. Singer-Prebish Existing Evidence on RCH: Cross-country generally Negative effect of resource abundance (share in GDP/exports) on growth [e.g., Sala-i-Martin & Subramanian (S&S), IMF WP, 2003)] Effect of commodity prices on growth (cross-ctryctry generally) Generally positive (e.g., Deaton & Miller, JAE,, 1996) Positive and negative SR and LR effects using panel (Collier and Goderis, CSAE WP, 2007) RCH in LR Importance of Country-specific Evidence Why Botswana and Nigeria? 3

4 Growth and TOT: Botswana vs. Nigeria Mean GDP Growth and GTOT (annual average, %): Botswana Mean GTOT Mean GDP Growth Nigeria Notes: GTOT is the Net Barter Terms of Trade. Data are for , except GTOT for Botswana, which is for GDP and TOT data are from World Bank WDI 2005 and World Bank Africa Database CDROM 2004, respectively.

5 Growth Performance: Botswana vs. Nigeria GDP Growth (annual %), % Botswana Nigeria

6 Theoretical Discussion: Possible Channels of the Resource Curse Institutions and Governance Civil Conflicts Elite Political Instability Human Capital Openness Dutch Disease? 6

7 Institutions & Governance: Resource Curse? Higher TOT (from NR) Larger Resource Rent Higher Growth if good institutions Lower Growth if bad institutions :RC (e.g., Mehlum et al., EJ,, 2006) Higher TOT (from NR) Larger Resource Rent Institutions corroded Lower Growth: RC (e.g., S&S, IMF WP, 2003)

8 Institutions & Governance: Botswana vs. Nigeria (& SSA) Botswana Nigeria SSA Years: Pol Rgts Civ Libs LIEC EIEC XC Source: See Fosu (2010). Terms of Trade and Growth of Resource Economies: A Tale of Two Countries, paper submitted for IMF Institute High Level Seminar, Algiers, 4-5 November 2010.

9 Civil Conflicts: Botswana vs. Nigeria Higher TOT (from NR) Larger Resource Rent Civil Conflicts (e.g., Collier & Hoeffler, OEP,, 2004) Lower Growth Civil Wars/State Breakdown tend to reduce growth: per capita GDP growth reduction of more than 2.0 %age points annually (e.g., Collier, OEP,, 1999; Fosu & O Connell, ABCDE,, 2006) Botswana vs. Nigeria: civil conflicts (at least 1000 deaths annually (Collier and Hoeffler, OEP,, 2004; table 1): Botswana: None Nigeria: 2 (January 1966 to January 1970, and December 1980 to January 1984).

10 Elite Political Instability (EPI): Botswana vs. Nigeria Higher TOT (from NR) Larger Resource Rent EPI (Kimenyi & Mbaku, PC,, 2003) Lower Growth (e.g., Fosu, EDCC,, 1992; EL,, 2001a; AJES,, 2002) Botswana vs. Nigeria: Botswana: None Nigeria: 6 successful coups, 2 failed coups & 6 coup plots; 7 th out of 46 SSA countries (McGowan, JMAS,, 2003)

11 Human Capital: Public Spending on Educ & Hlth: Botswana vs. Nigeria i ( average) Higher TOT (from NR) Larger Resource Rent Lower Human Cap. (e.g., Glf Gylfason, EER,, 2001) Botswana vs. Nigeria: Botswana Educ Hlth Nigeria Educ Hlth Per Cap. (1987 US$) Expend. Share (%) Source: Fosu (2010)

12 Openness: Botswana vs. Nigeria Higher TOT (from NR) Larger Resource Rent Lower Openness (e.g., Auty, 2001) Lower Growth (e.g., Sachs & Warner, JAE, 1997) S-W Measure of Openness - Botswana vs. Nigeria (Mehlum et al., EJ,, 2006): Botswana: 0.42 Nigeria: 0.00

13 Empirical Model & Estimation Empirical Model Polynomial Distributed Lag Model estimated for Botswana and Nigeria i Dependent Variable: GDP Growth Independent d Variable: GTOT with hl lags Possible improvement: Country-specific effects Possible problems: Omitted variables and degrees of freedom Expected: Sum of lag coefficients of GTOT (long-term effect of GTOT) positive for Botswana but non-positive for Nigeria

14 Empirical Results: Botswana Distributed-Lag Analysis: GDP Growth vs. GTOT Botswana Sum of lag coefficients (t value) = 2.26 (5.00) Number of lags = 10; Degree of polynomial = 3 Sample period = ; Adjusted sample period = R 2 = 0.867, Adj. R 2 = F statistic [p value] = 28.4 [0.000] DW = 2.09 Akaike Information Criterion = 4.16 Schwartz Criterion =

15 Empirical Results: Nigeria Distributed-Lag Analysis: GDP Growth vs. GTOT Nigeria Sum of fl lag coefficients i (t value) = (-1.70) Number of fl lags = 15; Degree of polynomial l=4 Sample period = ; Adjusted sample period = R 2 = 0.513, Adj. R 2 = F statistic [p value] = 4.48 [0.012] DW = 2.30 Akaike Information Criterion = 5.81 Schwartz Criterion = 6.06

16 Discussion of Results RCH holds in Nigeria i but not in Botswana Some caveats: RCH could still hold in Botswana despite the positive long- term effect of GTOT Possible degrees of freedom problems Possible omitted variable problems, especially the inability to account for the effects of TOT volatility Caveats should not pose any real critical problems, though E.g., negative GTOT effect may be reflecting TOT volatility effect, BUT: Negative TOT volatility effect is less than certain for African economies (review: Fosu, JAE,, 2001) Negative effect of TOT volatility supports RCH

17 Some Lessons & Concluding Observations (1) Good institutions =? (Mehlum et al. (EJ,, 2007), e.g., does not help re. DCs, which all have below-threshold IQ values But Norway has good institutions alamehlum et al. and clever policies a la Cappelen and Mjoset (WIDER RP, 2009): Some lessons =? Integration of resource sector into economy via proactive government (e.g., Statoil; creating supply of and demand for skills via industry-educational linkages) Minimizing the revenue-impact of oil price vagaries via the Petroleum Fund Forestalling potential predatory government action via binding policy rules Nigeria s recent experience with its Excess Crude Account (ECA) implies need to heed particularly 3 rd lesson above

18 Some Lessons & Concluding Observations (2) Botswana has lessons also, qualitatively,, a la Mehlum et al Relatively good institutions No evidence of institutional corrosion But, how feasible for Nigeria? Much less homogeneous and larger population than Botswana s (and Norway s) Implications of higher ethnic fractionalization for the quality of policies (Easterly & Levine, QJE,, 1997) Besides, resource revenues are likely to continue eroding IQ S&S Solution (Hopeless): Distribute oil revenues to all (adult) Nigerians (S&S, IMF WP, 2003)

19 Some Lessons & Concluding Observations (3) Some Hopeful News But population heterogeneity need not be destiny; Nigeria s score on ethnic polarization < Botswana s (Montalvo and Reynal-Querol Querol, AER,, 2005) Nigeria s governance is improving 5/6 governance measures, esp. voice and accountability, have improved between 1998 and 2008 (Fosu, 2010, table 6) PR, CL, XC, LIEC and EIEC scores increasing (table above) Democratization tends to raise growth in ad advanced-level anced el democracies in Africa (Fosu, EL,, 2008) Developmental governance requires significant executive restraint (Alence, JMAS,, 2004) Non-S&S Solution (Hopeful): Maintain the democratization momentum that t could result in advanced-level d l democracy, with significant XC.

20 Thank you! 20